Bath tub



FIG. 1 is a perspective view of a bath tub showing our new design as seen from the top and one side;

FIG. 2 is a perspective view thereof as seen from the top and opposite side;

FIG. 3 is a top plan view thereof;

FIG. 4 is an end elevational view thereof as seen from the right hand end of FIG. 3;

FIG. 5 is a side elevational view thereof as seen from the bottom of FIG. 3;

FIG. 6 is an end elevational view thereof as seen from the left hand end of FIG. 3;

FIG. 7 is a side elevational view thereof as seen from the top of FIG. 3;

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a bath tub, as shown. 